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Bonded crystal
laser crystal
Diffusion bonding is a process where two crystals are first subjected to a series of surface treatments, then closely attached to each other to form an optical adhesive at room temperature. Subsequently, the crystals are heat-treated to achieve a permanent bond without the need for other adhesives. Experiments have shown that when undoped crystals are bonded as end caps to both ends of a doped crystal of the same matrix, the temperature rise at the end faces is very small, approaching the temperature of the coolant. This reduces the end-face distortion caused by the thermal lens effect and the thermally induced wavelength shift of the spectroscopic coating, which is beneficial for the stable operation of the laser and high-power laser operation. Therefore, this thermal bonding technology can not only significantly improve the thermal performance of the laser and the quality of the laser beam in laser applications but also facilitate the integration of the laser system and the acquisition of large-sized crystals.
Doping Concentration | 0.5% - 3% |
Cross-section (mm) | 2×2 - 10×10 |
Length of Laser Crystal (mm) | 1 - 30 |
LD Power/W | 1.22 | 1.43 | 1.64 | 1.85 | 2.06 | 2.27 | 2.48 | 2.69 | 2.9 | 3.11 | 3.32 | 3.53 | 4 |
1064 Power/mW | 91 | 152 | 201 | 251 | 299 | 353 | 402 | 441 | 492 | 533 | 554 | 520 |